Glass-furnace



2 sheets-sheet 1'.

(No Mcdel.)

M. L. MURPHY.

GLASS FURNAGE.

No. 476,672. Patentedune 7, 1892.

2 Sheets-Sheet 2.

(No Model.)

M. L. MURPHY. GLASS FURNAGB.

No. 476,572. Patented June 7, 1892.

UNITED STATES PATENT @Erica MICHAEL L. MURPHY, OF CORAOPOLIS, PENNSYLVANIA.

GLASS-FURNACE.

SPECIFICATION forming part of Letters Patent No. 476,672, dated J une 7, 1892.

Application tiled September 1G, 1891. Serial No. 405,910. (No model.)

To all whom it may concern:

Be it known that I, MICHAEL L. MURPHY, a citizen of the United States, residing at Coraopolis, in the county of Allegheny and State Y of Pennsylvania, have invented certain new and useful Improvements in Glass-Furnaces; and I do hereby declare the following to be a f ull, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, in which- Figure l is a vertical longitudinal section on line y y of Fig. 2. Fig. 2 is a horizontal section on line Qc of Fig. 1. Fig. 3 is the same on line c' of Fig. 1.

My invention relates to that class of furnaces specially adapted to smelting glass; and it consists in the novel construction and arrangement of parts hereinafter specifically described, reference being had to the accompanying drawings, forming part hereof.

Referring to said drawings, A A are producers, arranged on either side the well or eye B, which rests and is supported upon the eye-plate b and is provided with teaze-holes c c, through which coal, when it is necessary or desirable to use the same, may be charged into said eye. Grate-bars to admit of this may be supported upon the bars d, four in number, which extend across the bottom of said eye, one at either side and two at the center. Said producers are connected and communicate with said well or eye by means of the arched channels or passage-ways C, which enter said eye tangentially at opposite sides thereof, the sidecoof said tangential channels, respectively, that opens into the eye almost on a line with the center of the same and the walls of the eye on a line therewith, respectively, some distance above and below the plane of said channels project into said eye, as shown in Figs. l and 2, whereby the gases are given a spiral or swirling motion in ascending said eye. For the purpose of giving additional velocity to the gas in its passage from said producers to said eye,Iadmit steam through pipes e, which are located beneath the rear ends of the grate-bars gg of said producers, respectively, and serve as the rear ,mingle with the gases generated in said producers,increasing the velocity of the same toward the eye and adding largely to the combustion of the same therein. The side walls of said producers, respectively, are provided Ywith air-ports h 72., opening from the front near the bottom of the same, for the admission of air to the horizontal flues la k k Zt, arranged one above the other in said side walls and communicating at the rear and front, alternately, as shown in Fig. l, the upper of said iiues respectively opening into the hot-air chamber m, which entirely surrounds said eye or well. n n are ports in the side of said eye at the bottom of the same and entering said chamber fm. Near the top 0f said eye and communicating with said chamber are a number of ports p p p p for admission of heated air into said eye. r r are doors in the front of said producers, respectively, through which the same may be charged. s and sare dampers for the purpose of closing the channels between the producers and the eye of said furnace, whereby one or both of said producers may be shut off, if necessary or desirable, and the furnace be operated by one producer and the well or by the well alone.

Some of the advantages of my furnace (aside from attaining intense combustion economically) are that I am enabled to place the producers quite a distance from the well or eye of the furnace, and from the peculiar construction of the gas-discharging channels connecting the said producers and well attain very great velocity in the passage of the gas from said producers to the point of combustion in the eye or well. The hot-air chamber surrounding the eye or well not only enables me to utilize all the waste heat from the walls of the same to raise the temperature ofthe air in said chamber, but interposing, as it does, between the eye and producers protects the latter from the excessive heat o f the former. The construction of the air-dues in the side IOO walls of the producers also enables me to utilize the heat of the same to raise the temperature of the air before its admission to the chamber surrounding the eye of said furnace.

Having described my invention, what I claim, and desire to secure by Iietters Paten t, 1s

l. In a glassunelting furnace,substantially as described, the combination of a deep Well or eye, an air-chamber surrounding the same, and one or more producers arranged at the side or sides of said eye orwell and connected therewith by a passage openin g tangentinally therein, said producers having air-dues located in the side Walls of the same and communicating with said air-chamber,substantially as and for the purpose set forth.

2. In a glass-melting furnace, substantially as described, the combination ot a deep Well MICHAEL L. MURPHY.

In presence of- CHAi-:Lns LARGE, JN0. U. HONEY. 

